Hi Fokou,

Seems `features` column was inferenced to be RAW type, which doesn’t carry any 
specific data information, and causes following type casting failed.

Sometimes it will happen when Flink can’t infer return type from a lambda 
expression but no explicit returning type information was provided[1], and 
could be solved by inserting an extraneous .returns(<SomeTypeInformation>) 
call.[2]

If that doesn’t solve your problem, could you please share more information 
like a code snippet or a minimum POC?

Regards,
yux

[1] 
https://nightlies.apache.org/flink/flink-docs-release-1.19/docs/dev/datastream/java_lambdas/
[2] 
https://stackoverflow.com/questions/70295970/flink-table-get-type-information


De : Fokou Toukam, Thierry <thierry.fokou-touka...@ens.etsmtl.ca>
Date : jeudi, 6 juin 2024 à 09:04
À : user <user@flink.apache.org>
Objet : Flink job Deployement problem
Hi, i'm trying to deploy flink job but i have this error. How to solve it 
please?
[cid:b13357ec-00b9-4a15-8d04-1c797a4eced3]

Thierry FOKOU |  IT M.A.Sc Student

Département de génie logiciel et TI

École de technologie supérieure  |  Université du Québec

1100, rue Notre-Dame Ouest

Montréal (Québec)  H3C 1K3

[image001]<http://etsmtl.ca/>

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